Halopropargyl compounds, compositions, uses and processes of preparation

ABSTRACT

Compounds of the formula ##STR1## wherein A is selected from the group consisting of hydrogen, alkyl, aryl, and heterocyclic; 
     Y and Z are independently selected from the group consisting of O, S, and N--R; 
     R is selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted phenyl, and substituted or unsubstituted heterocyclic; and 
     X is selected from the group consisting of I and Br. 
     are disclosed to useful as antimicrobials.

This application is a continuation-in-part of Ser. No. 370,373 of Jun. 22, 1988.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to control of microorganisms.

2. Description of the Prior Art

Certain classes of iodopropargyl compounds have been proposed as fungicides or microbicides but no compound within those classes has achieved commercial success.

U.S. Pat. No. 4,616,004 to Edwards discloses fungicidal activity for compounds of the formula ##STR2##

U.S. Pat. No. 4,639,460 to Rose shows compounds of the formula ##STR3## as fungicides.

U.S. Pat. No. 4,520,023 to Schmitt shows 3-(3-iodopropargyl)benzo-1,2,3-triazolin-4-ones and their use as microbicidal agents.

There was no suggestion in the prior art that compounds within the formula of the present invention would have utility in controlling microorganisms.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide new compounds for controlling microorganisms.

A further object is to provide methods of making such compounds, methods of using them, compositions comprising such compounds, and uses of such compositions.

These objects, and others which will become apparent from the following disclosure, are achieved by the present invention which comprises in one aspect compounds of the formula ##STR4## wherein A is selected from the group consisting of hydrogen, alkyl, aryl, and heterocyclic;

Y and Z are independently selected from the group consisting of O, S, and N--R,

R is selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted phenyl, and substituted or unsubstituted heterocyclic; and

X is selected from the group consisting of I and Br.

In another aspect the invention comprises a method of preparing such compound comprising reacting compound of the formula ##STR5## with an iodinating or brominating agent.

A further aspect comprises using a composition comprising the compounds, or the compound itself, to protect a material selected from the group consisting of wood, paint, adhesive, glue, paper, textile, leather, plastics, cardboard, lubricants, cosmetics, food, caulking, feed and industrial cooling water from microorganisms.

DETAILED DESCRIPTION OF THE INVENTION AND THE PREFERRED EMBODIMENT

The compounds of the invention are of formula I as set forth above. The more preferred embodiments are those wherein A is selected from the group consisting of hydrogen; (C₁ to C₁₈) straight or branched alkyl; (C₃ to C₈) cycloalkyl; (C₃ to C₆) alkenyl; (C₃ to C₅) alkynyl; (C₇ to C₁₂) aralkyl; (C₆ to C₁₂) aryl; (C₆ to C₁₂) aryl substituted with 1 to 3 substituents selected from the group consisting of halogen, (C₁ to C₄) alkyl, (C₁ to C₄) alkoxy, nitro, cyano, carboxyl (C₁ to C₄) alkoxycarbonyl, (C₁ to C₄) alkyl thio, -S(O)nR² where n is 1 or 2 and R² is (C₁ -C₄) alkyl; and a halo-substituted, nitro-substituted, or un-substituted moiety selected from the group consisting of 2-thienyl, 3-thienyl, 2-furyl, 3-furyl, 2-pyridyl, 3-pyridyl, and 4-pyridyl. A cannot be R⁴ S- where R⁴ is any moiety. Examples of heterocyclic R substituents are furyl, thienyl, pyridyl, and the like.

The iodopropargyl compounds, i.e., those wherein X is I, are preferred. The 5-one compounds, i.e., those wherein Y is O, are also preferred.

As stated above, compositions comprising a compound according to formula I and either an agronomically acceptable carrier, a cosmetic agent, a cutting oil, a soap or synthetic detergent, a stabilizer, a film forming material, or the like have a wide range of utility for protecting against or controlling microorganisms from a wide variety of classes including fungus, bacteria, algae, viruses and yeasts. The preferred utilities of the compositions are to protect wood, paint, adhesive, glue, paper, textile, leather, plastics, cardboard, lubricants, cosmetics, food, caulking, feed and industrial cooling water from microorganisms.

The following lists specific industries and applications of the compounds or compositions.

    ______________________________________                                         Industry       Application                                                     ______________________________________                                         Adhesives, Sealants                                                                           Adhesives                                                                      Caulks                                                                         sealants                                                        agriculture/food chain                                                                        adjuvant preservation                                                          agricultural active ingredient                                                 agricultural chemical preservative                                             agricultural formulations preservation                                         animal feed preservation                                                       dairy chemicals                                                                fertilizer preservation                                                        food preservation                                                              food processing chemicals                                                      grain preservation                                                             post-harvest produce protection                                                sugar processing                                                               tobacco                                                         Construction products                                                                         asphalt/concrete                                                               cement modifiers                                                               construction products                                                          roof mastics                                                                   synthetic stucco                                                               wall mastics                                                                   joint cement                                                    Cosmetics and toiletries                                                                      Cosmetics                                                                      raw materials for cosmetics, toiletries                                        toiletries                                                      Disinfectants, antiseptics                                                                    antiseptic                                                                     disinfectant                                                    Emulsions, dispersions                                                                        aqueous dispersions                                                            dispersed pigments                                                             latex                                                                          photographic emulsions                                                         pigment slurries                                                               polymer latices                                                 formulated household                                                                          fabric softeners                                                products       polishes                                                                       waxes                                                                          hand dish detergents                                                           raw materials                                                                  liquid detergents                                                              hand soaps                                                      Industrial processing, misc                                                                   electrodeposition paint, baths, rinses.                                        electrodeposition pre-treatment, post                                          rinses                                                                         Industrial fluids preservation                                                 pasteurization baths                                                           process aid preservation                                        Industrial water treatment                                                                    air washers                                                                    cooling towers                                                                 cooling water                                                                  water cooling                                                                  preservation/treatment of wooden                                               cooling tower slats and structural                                             members                                                                        can warmers                                                                    brewery pasteurization                                                         closed loop water cooling systems                               Laundry        household laundry products                                                     laundered goods                                                                laundry wash water                                                             sanitizers-laundry                                              Leather, Leather products                                                                     leather and hide                                                               leather and hide products                                       Lubricants, hydraulic aids                                                                    automotive lubricants and fluids                                               conveyor lubricants                                                            greases                                                                        hydraulic fluids                                                               lubricants                                                      Medical devices                                                                               diagnostic enzymes                                                             diagnostic kits                                                                medical devices                                                 metalworking & related                                                                        cutting fluids                                                  app's          Metal cleaning                                                                 metalworking fluids                                             Odor control (active                                                                          air conditioning                                                ingredient)    animal bedding                                                                 cat litter                                                                     chemical toilet prep'ns                                                        deodorizers                                                                    humidifiers                                                                    industrial deodorants                                                          sanitary formulations                                                          toilet bowls                                                    Paints and coatings coating                                                                   emulsions                                                                      paints                                                          Paper and wood pulp,                                                                          absorbant materials of paper and                                their products wood pulp                                                                      packaging materials of paper and                                               wood pulp                                                                      paper products                                                                 paper treatment                                                                soap wrap                                                                      wood pulp                                                                      wood pulp products                                              paper mill     paper mill slimicides                                                          pulp and paper slurries                                         Petroleum refining, fuels                                                                     aviation fuels (jet fuel, aviation gas)                                        crude oils                                                                     burner, diesel and turbine fuel oils                                           coal slurries                                                                  diesel fuel additives                                                          diesel fuels                                                                   fuels                                                                          gasoline                                                                       heating oils                                                                   hydrocarbons                                                                   Kerosene                                                                       liquefied petroleum gas                                                        petrochemical feedstocks                                                       petroleum products, storage,                                                   transportation and production                                                  recycled petroleum products                                                    residual fuel oils                                                             turbine oils                                                    Photographic Chemicals                                                                        Photographic processing - wash                                  and process    water, rinses                                                                  photoprocessing                                                                Photoplate processing chemicals                                                (developers, stabilizers etc)                                   Printing       Fountain solutions (printing)                                                  Ink components (pigments, resins,                                              solvents, etc)                                                                 Inks                                                            sanitizers (active)                                                                           sanitizers                                                                     sanitizers-dairy                                                               sanitizers-dental                                                              sanitizers-fermentation                                                        sanitizers-food preparation                                                    sanitizers-food processing                                                     sanitizers-medical                                                             sanitizers-rendering                                                           sanitizers-veterinary                                           Soaps, detergents, cleaners                                                                   cleaners                                                                       detergents                                                                     household cleaners                                                             industrial cleaners                                                            liquid soaps                                                                   oil and grease remover                                                         powdered soaps                                                                 raw materials for cleaning products                                            soaps                                                                          surfactants                                                     Textiles, textile products                                                                    bonded fabrics                                                                 burlap                                                                         canvas                                                                         canvas goods                                                                   carpet backing                                                                 carpets                                                                        clothing                                                                       coated fabrics                                                                 curtains                                                                       draperies                                                                      engineering textiles                                                           fibers                                                                         geotextiles                                                                    goods made of textiles                                                         knitted fabrics                                                                nets                                                                           nonwoven fabrics                                                               rope                                                                           rugs                                                                           textile accessories                                                            textile products                                                               textiles                                                                       upholstery                                                                     woven fabrics                                                                  yarn                                                            Textile processing                                                                            dye fixatives                                                                  dyes                                                                           fiber lubricants                                                               hand modifiers                                                                 sizes                                                                          Textile processing fluids                                       Therapeutic (active or                                                                        animal health/veterinary                                        preservative)  aquaculture                                                                    dental                                                                         human health                                                                   pharmaceutical/therapeutic                                      water purification                                                                            charcoal beds                                                                  deionization resins                                                            filters                                                                        membranes                                                                      reverse osmosis membranes                                                      ultrafilters                                                                   Water purification                                                             water purificiation pipes, tubing                               wood applications                                                                             lazures (wood stains)                                                          wood                                                                           wood products                                                   Miscellaneous  alcohols                                                                       bedding incorporating water or gels                                            ceramic                                                                        contact lens cases-leaching                                                    electronic circuitry                                                           electronics chemicals                                                          enzymes-food production                                                        enzymes                                                                        enzymes-industrial                                                             gel cushions                                                                   marine antifoulants                                                            mildewcides                                                                    wood                                                                           plastics                                                                       laundry                                                                        mining                                                                         natural rubber latex                                                           oil field injection waters including                                           enhanced recover injection fluids,                                             drilling, fracturing and completion                                            fluids                                                                         pipes                                                                          plastics                                                                       polymer systems                                                                polymers and resins (synthetic and                                             natural)                                                                       reagent preservation                                                           rubber                                                                         rubber products                                                                skin remover                                                                   solid protective/decorative films                                              stains                                                                         swimming pools                                                                 waste treatment                                                                water beds                                                      ______________________________________                                    

The amounts of the compound to be used depend on the application. The useful amounts for a particular application are similar to amounts used for other microbiocide compounds.

The compound can be used in combination with other microbicides. The term "microbicide" is considered equivalent to "antimicrobial" as used herein.

Compounds of formula I can be prepared by a variety of methods. One suitable method comprises reacting a compound of the formula ##STR6## with an iodinating or brominating agent.

Suitable iodinating or brominating agents include, for example, iodine, bromine, an iodine-amino compound such as morpholineiodine complex, morpholine-bromine complex, N-bromosuccinimide ("NBS") and N-iodosuccinimide ("NIS"), the latter being the most preferred.

When an iodine, bromine, or iodo-amino compound is used, base should also be used, preferably sodium or potassium hydroxide, and solvent such as methanol, ethanol, and aqueous ethanol should also be used.

When NIS or NBS is used, a catalyst such as, for example, silver nitrate, or the like, should be used in presence of solvent such as acetone, methyl ethyl ketone, tetrahydrofuran, and the like.

Reaction times of about 20 minutes to about 24 hours have been utilized successfully with reaction temperatures of about 0° C. to about 25° C.

Suitable methods of application of compounds of formula I to control fungi, bacteria, algae, viruses, yeasts, and the like are in amounts and with carriers, etc., as well known in the art.

The following examples are presented to illustrate a few embodiments of the invention. All parts and percentages are by weight unless otherwise indicated.

EXAMPLES

Some representative compounds the invention are the following:

    ______________________________________                                         Com-                                                                           pound #                                                                        ______________________________________                                          1.    2-(4-chlorophenyl)-4-(3-iodopropargyl)-1,3,4-                                  oxadiazolin-5-one                                                        2.    2-(2-methylphenyl)-4-(3-iodopropargyl)-1,3,4-                                  oxadiazolin-5-one                                                       3.     2-(4-methylphenyl)-4-(3-iodopropargyl)-1,3,4-                                  oxadiazolin-5-one                                                       4.     2-(3-methylphenyl)-4-(3-iodopropargyl)-1,3,4-                                  oxadiazolin-5-one                                                       5.     2-(2-chlorophenyl)-4-(3-iodopropargyl)-1,3,4-                                  oxadiazolin-5-one                                                       6.     2-(3-chlorophenyl)-4-(3-iodopropargyl)-1,3,4-                                  oxadiazolin-5-one                                                       7.     2-(2-thienyl)-4-(3-iodopropargyl)-1,3,4-oxadiazolin-5-one               8.     2-n-propyl-4-(3-iodopropargyl)-1,3,4-oxadiazolin-5-one                  9.     2-(4-nitrophenyl)-4-(3-iodopropargyl)-1,3,4-oxadiazolin-                       5-one                                                                   10.    2-(3-nitrophenyl)-4-(3-iodopropargyl)-1,3,4-oxadiazolin-                       5-one                                                                   11.    2-(2-nitrophenyl)-4-(3-iodopropargyl)-1,3,4-oxadiazolin-                       5-one                                                                   12.    2-(4-trifluoromethylphenyl)-4-(3-iodopropargyl)-1,3,4-                         oxadiazolin-5-one                                                       13.    2-(2-methoxyphenyl)-4-(3-iodopropargyl)-1,3,4-                                 oxadiazolin-5-one                                                       14.    2-(4-methoxyphenyl)-4-(3-iodopropargyl)-1,3,4-                                 oxadiazolin-5-one                                                       15.    2-(3-methoxyphenyl)-4-(3-iodopropargyl)-1,3,4-                                 oxadiazolin-5-one                                                       16.    2-(4-bromophenyl)-4-(3-iodopropargyl)-1,3,4-                                   oxadiazolin-5-one.                                                      17.    2-(2-fluorophenyl)-4-(3-iodopropargyl)-1,3,4-                                  oxadiazolin-5-one                                                       18.    2-(2-furyl)-4-(3-iodopropargyl)-1,3,4-oxadiazolin-5-one                 19.    1-(3-iodopropargyl)-3-(4-methylphenyl)-4-ethyl-1,2,4-                          triazolin-5-one                                                         20.    1-(3-iodopropargyl)-3-(4-chlorophenyl)-4-ethyl-1,2,4-                          triazolin-5-one                                                         21.    1-(3-iodopropargyl)-3-phenyl-4-ethyl-1,2,4-triazolin-5-                        one                                                                     22.    1-(3-iodopropargyl)-3-(4-nitrophenyl)-4-ethyl-1,2,4-                           triazolin-5-one                                                         23.    1-(3-iodopropargyl)-3-(4-methoxyphenyl)-4-ethyl-1,2,4-                         triazolin-5-one                                                         24.    1-(3-iodopropargyl)-3-(2-thienyl)-4-ethyl-1,2,4,-triazolin-                    5-one                                                                   25.    1-(3-iodopropargyl)-3-(3-methylphenyl)-4-ethyl-1,2,4-                          triazolin-5-one                                                         26.    1-(3-iodopropargyl)-3-(2-methylphenyl)-4-ethyl-1,2,4-                          triazolin-5-one                                                         27.    1-(3-iodopropargyl)-3-(3-fluorophenyl)-4-ethyl-1,2,4-                          triazolin-5-one                                                         28.    1-(3-iodopropargyl)-3-(1-naphthyl)-4-ethyl-1,2,4-                              triazolin-5-one                                                         29.    1-(3-iodopropargyl)-3-(2-naphthyl)-4-ethyl-1,2,4-                              triazolin-5-one                                                         30.    1-(3-iodopropargyl)-3-(4-bromophenyl)-4-ethyl-1,2,4-                           triazolin-5-one                                                         31.    1-(3-iodopropargyl)-3-(2-fluorophenyl)-4-ethyl-1,2,4-                          triazolin-5-one                                                         32.    1-(3-iodopropargyl)-3-(4-fluorophenyl)-4-ethyl-1,2,4-                          triazolin-5-one                                                         33.    1-(3-iodopropargyl)-3-(3-pyridyl)-4-ethyl-1,2,4-                               triazolin-5-one                                                         34.    1-(3-iodopropargyl)-3-(2-methoxyphenyl)-4-ethyl-1,2,4-                         triazolin-5-one                                                         35.    1-(3-iodopropargyl)-3-(3-nitrophenyl)-4-ethyl-1,2,4-                           triazolin-5-one                                                         36.    1-(3-iodopropargyl)-3-(3-chlorophenyl)-4-ethyl-1,2,4-                          triazolin-5-one                                                         37.    1-(3-iodopropargyl)-3-(3-bromophenyl)-4-ethyl-1,2,4-                           triazolin-5-one                                                         38.    1-(3-iodopropargyl)-3-(3-methoxyphenyl)-4-ethyl-1,2,4-                         triazolin-5-one                                                         39.    1-(3-iodopropargyl)-3-(3-ethoxyphenyl)-4-ethyl-1,2,4-                          triazolin-5-one                                                         40.    1-(3-iodopropargyl-3-(4-methylphenyl)-4 n-butyl-1,2,4-                         triazolin-5-one                                                         41.    1-(3-iodopropargyl)-3-(4-methylphenyl)-4-i-propyl-1,2,4-                       triazolin-5-one                                                         42.    1-(3-iodopropargyl)-3-n-propyl-4-ethyl-1,2,4-triazolin-                        5-one                                                                   43.    1-(3-iodopropargyl)-3-(4-chlorophenyl)-4-phenyl-1,2,4-                         triazolin-5-one                                                         44.    1-(3-iodopropargyl)-3-(2-chlorophenyl)-4-ethyl-1,2,4-                          triazolin-5-one                                                         45.    1-(3-iodopropargyl)-3-(4-chlorophenyl)-4-(4-                                   chlorophenyl)-1,2,4-triazolin-5-one                                     46.    1-(3-iodopropargyl)-3-(4-chlorophenyl)-4-(4-                                   methylphenyl)-1,2,4-triazolin-5-one                                     47.    1-(3-iodopropargyl)-3-methyl-4-phenyl-1,2,4-triazolin-                         5-one                                                                   48.    1-(3-iodopropargyl)-3-methyl-4-(4-chlorophenyl)-1,2,4-                         triazolin-5-one                                                         49.    1-(3-iodopropargyl)-4-(4-chlorophenyl)-1,2,4-triazoline-                       5-one                                                                   50.    1-(3-iodopropargyl)-4-phenyl-1,2,4-triazolin-5-one                      51.    1-(3-iodopropargyl)-3-(4-bromophenyl)-4-methyl-1,2,4-                          triazolin-5-one                                                         52.    1-(3-iodopropargyl)-3-(4-chlorophenyl)-4-methyl-1,2,4-                         triazolin-5-one                                                         53.    1-(3-iodopropargyl)-3-(4-fluorophenyl)-4-methyl-1,2,4-                         triazolin-5-one                                                         54.    1-(3-iodopropargyl)-3-(3-chlorophenyl)-4-methyl-1,2,4-                         triazolin-5-one                                                         55.    1-(3-iodopropargyl)-3-(3-bromophenyl)-4-methyl-1,2,4-                          triazolin-5-one                                                         56.    1-(3-iodopropargyl)-3-(3-fluorophenyl)-4-methyl-1,2,4-                         triazolin-5-one                                                         57.    1-(3-iodopropargyl)-3-(2-fluorophenyl)-4-methyl-1,2,4-                         triazolin-5-one                                                         58.    1-(3-iodopropargyl)-3-t-butyl-4-phenyl-1,2,4-triazolin-                        5-one                                                                   59.    2-phenyl-4-iodopropargyl-1,3,4-thiadiazolin-5-one                       ______________________________________                                    

Table (1) shows the structures and the physical data of these representative compounds.

                                      TABLE 1                                      __________________________________________________________________________     Physical Data                                                                   ##STR7##                               (II)                                    ##STR8##                               (III)                                   ##STR9##                               (IV)                                                                 NMR Chemical Shifts                              NO.                                                                               Formula                                                                             A        R     Melting Point                                                                         (ppm)                                            __________________________________________________________________________      1.                                                                               II   4-Cl-ph  --    151-152° C.                                       2.                                                                               II   2-Me-ph  --    152-154° C.                                       3.                                                                               II   4-Me-ph  --    174-175° C.                                       4.                                                                               II   3-Me-ph  --    114-115°  C.                                      5.                                                                               II   2-Cl-ph  --    104-107° C.                                       6.                                                                               II   3-Cl-ph  --    124-126° C.                                       7.                                                                               II   2-thiophene                                                                             --    149-151° C.                                       8.                                                                               II   n-propyl --    42-46° C.                                                                      4.60(2H, s, CH.sub.2), 2.55                                                    (2H, t, CH.sub.2), 1.74(2H, m                                                  CH.sub.2), 1.02(3H, t, CH.sub.3)                  9.                                                                               II   4-NO.sub.2 -ph                                                                          --    176-178° C.                                      10.                                                                               II   3-NO.sub.2 -ph                                                                          --    99.5-102° C.                                        II   2-NO.sub.2 -ph                                                                          --    116-120° C.                                         II   4-CF.sub.3 -ph                                                                          --    144-147° C.                                         II   2-MeO-ph --    115-117° C.                                         II   4-MeO-ph --    171-173° C.                                         II   3-MeO-ph --    128-130° C.                                         II   4-Br-ph  --    159-162° C.                                         II   2-F-ph   --    139-142° C.                                         II   furyl-2  --    140-142° C.                                         III  4-Me-ph  Et    141-145° C.                                      20.                                                                               III  4-Cl-ph  Et    115-120° C.                                         III  ph       Et    144-148° C.                                         III  4-NO.sub. 2 -ph                                                                         Et    184-187° C.                                         III  4-OMe-ph Et    oil    7.20(4H, aromatic H),                                                          4.75(2H, s, CH.sub.2) 3.84                                                     (3H, s, CH.sub.3), 3.75                                                        (2H, q, CH.sub.2) 1.28                                                         (3H, t, CH.sub.3)                                   III  2-thiophene                                                                             Et    134-136° C.                                         III  3-Me-ph  Et    oil    7.34(4H, m, arom. H),                                                          4.78(2H, s, CH.sub.2), 3.80                                                    (2H, q, CH.sub.2), 2.40                                                        (3H, s, CH.sub.3), 1.25                                                        (3H, t, CH.sub.3)                                   III  2-Me-ph  Et    oil    7.35(4H, m, arom. H),                                                          4.80(2H, s, CH.sub.2), 3.56                                                    (2H, q, CH.sub.2), 2.29                                                        (3H, s, CH.sub.3) 1.12                                                         (3H, t, CH.sub.3)                                   III  2-F-ph   Et    104-107° C.                                         III  1-naphthyl                                                                              Et    148-152° C.                                         III  2-naphthyl                                                                              Et    63-70° C.                                        30.                                                                               III  4-Br-ph  Et    125-126°  C.                                        III  2-F-ph   Et    121-124° C.                                         III  4-F-ph   Et    108-111° C.                                         III  3-pyridyl                                                                               Et    129-131° C.                                         III  3-OMe-ph Et    127-130° C.                                         III  3-NO.sub.2 -ph                                                                          Et    153-158° C.                                         III  3-Cl-ph  Et    --     7.60(4H, m, arom. H),                                                          4.81(2H, s, CH.sub.2), 3.85                                                    (2H, q, CH.sub.2), 1.32                                                        (3H, t, CH.sub.3)                                   III  3-Br-ph  Et    --     7.80 to 7.40                                                                   (4H, m, arom. H), 4.80                                                         (2H, s, CH.sub.2), 3.84                                                        (2H, q, CH.sub.2), 1.30(3H, t,                                                 (CH.sub.3)                                          III  3-OMe-ph Et    --     7.50 to 7.00(4H, m,                                                            arom. H), 4.80                                                                 (2H, s, CH.sub.2), 3.85(4H, m,                                                 CH.sub.3 & CH.sub.2), 1.30                                                     (3H, t, CH.sub.3)                                   III  3-OEt-ph Et    --     7.50 to 7.00                                                                   (4H, m, arom. H), 4.80                                                         (2H, s, CH.sub.2), 4.10                                                        (2H, q, CH.sub.2), 3.84                                                        (2H, q, CH.sub.2), 1.46                                                        (3H, t, CH.sub.3), 1.26                                                        (3H, t, CH.sub.3)                                40.                                                                               III  4-Me-ph  n-Bu  --     7.40(4H, q, arom. H),                                                          4.78(2H, s, CH.sub.2), 3.80                                                    (2H, t, CH.sub.2), 2.44                                                        (3H, s, CH.sub.3), 1.62                                                        (2H, m, CH.sub.2), 1.30                                                        (2H, m, CH.sub.2),                                                             0.85(3H, t, CH.sub.3)                               III  4-Me-ph  i-pro --     7.38(4h, q, arom. H), 4.75                                                     (2H, s, CH.sub.2), 4.26                                                        (1H, m, CH), 2.45                                                              (3H, s, CH.sub.3), 1.55                                                        (6H, d, 2-CH.sub.3) 1.55                                                       (6H, d, 2-CH.sub.3)                                 III  n-prop   Et    89-93° C.                                           III  4-Cl-ph  ph    193-195° C.                                         III  2-Cl-ph  Et    86-89° C.                                           III  4-Cl-ph  4-Cl-ph                                                                              171-177° C.                                         III  4-Cl-ph  4-Me-ph                                                                              179-183° C.                                         III  Me       ph    179-182° C.                                         III  Me       4-Cl-ph                                                                              129-131° C.                                         III  H        4-Cl-ph                                                                              147-149° C.                                      50.                                                                               III  H        ph    192-193° C.                                         III  4-Br-ph  Me    145-150° C.                                         III  4-Cl-ph  Me    148-152° C.                                         III  4-F-ph   Me    122-125° C.                                         III  3-Cl-ph  Me    78-82° C.                                           III  3-Br-ph  Me    89-94° C.                                           III  3-F-ph   Ne    124-129° C.                                         III  2-F-ph   Me    121-126° C.                                         III  t-Butyl  ph    170-174° C.                                         IV   ph       --    117-119° C.                                      60 II   1-naphthyl                                                                              --    167-169° C.                                      61 II   Me       --    90-96° C.                                        62 II   n-C.sub.17 H.sub.35                                                                     --    41-46° C.                                        63 II   n-C.sub.4 H.sub.9                                                                       --    oil    4.60(2H, s, CH.sub.2), 2.60                                                    (2H, t, CH.sub.2), 1.70                                                        (2H, m, CH.sub.2), 1.42                                                        (2H, m, CH.sub.2), 0.95                                                        (3H, t, CH.sub.3)                                64 II   t-C.sub.4 H.sub.9                                                                       --    90-93° C.                                        65 II   3-Br-ph  --    127-129° C.                                      66 II   4-F-ph   --    127-129° C.                                      67 II   3-F-ph   --    127-129° C.                                      68 II   ph       --    137-139° C.                                      69 II   2-EtO-ph --    138-142° C.                                      70 II   3-EtO-ph --    129-132° C.                                      71 II   2-Cl, 4-NO.sub.2 -ph                                                                    --    161-166° C.                                      72 II   4-ph-ph  --    183-186° C.                                         II   3,5-(OMe).sub.2 -ph                                                                     --    161-165° C.                                         II   2,5-(OMe).sub.2 -ph                                                                     --    144-147° C.                                         II   3,4,5-(OMe).sub.3 -ph                                                                   --    135-137° C.                                         II   2,5-Cl.sub.2 -ph                                                                        --    121-123° C.                                         II   n-Heptyl --    Oil    4.62(2H, s, CH.sub.2),                                                         2.58(2H, t, CH.sub.2),                                                         1.70(2H, m, CH.sub.2).                                                         1.32(12H,m 4CH.sub.2),                                                         0.90(3H, t, CH.sub.3)                               III  t-Bu     3-F-ph                                                                               151-160° C.                                         III  t-Bu     Me    Oil    4.72(2H, s, CH.sub.2),                                                         3.42(3H, s, CH.sub.3),                                                         1.40(9H, s, 3CH.sub.3)                           80.                                                                               III  t-Bu     Et    Oil    4.70(2H, s, CH.sub.2),                                                         3.88(2H, q, CH.sub.2),                                                         1.38(12H, m, 4CH.sub.3)                             III  Me       Et    Oil    4.68(2H, s, CH.sub.2),                                                         3.72(2H, q, CH.sub.2),                                                         2.26(3H, s, CH.sub.3),                                                         1.30(3H, t, CH.sub.3)                               III  n-Bu     Et    Oil    4.82(2H, s, CH.sub.2),                                                         3.70(2H, q, CH.sub.2),                                                         2.40(2H, t, CH.sub.2),                                                         1.66(2H, m, CH.sub.2),                                                         1.38(5H, m),                                                                   0.98(3H, t, CH.sub.3)                               III  t-Bu     3-MeO-ph                                                                             168-170° C.                                         III  n-Pr     4-Cl-ph                                                                              50-56° C.                                           III  n-Pr     ph    106-112° C.                                         III  t-Bu     4-Cl-ph                                                                              168-171° C.                                         III  Me       4-Me-ph                                                                              166-170° C.                                         III  Me       4-MeO-ph                                                                             200-203° C.                                         III  n-Pr     4-MeO-ph                                                                             Oil    7.22(4H, q, arom. H),                                                          4.76(2H, s, CH.sub.2),                                                         3.85(3H, s, CH.sub.3),                                                         2.40(2H, t, CH.sub.2),                                                         1.58(2H, m, CH.sub.2),                                                         0.90(3H, t, CH.sub.3)                            90.                                                                               III  n-Pr     3-MeO-ph                                                                             109-112° C.                                         III  n-Pr     2-MeO-ph                                                                             Oil    7.55-7.02(4H, m,                                                               arom. H),                                                                      4.78(2H, s, CH.sub.2),                                                         3.86(3H, s, CH.sub.3),                                                         2.32(2H, q, CH.sub.2),                                                         1.60(2H, m, CH.sub.2),                                                         0.90(3H, t, CH.sub.3)                               III  Me       n-Hexyl                                                                              Oil    4.70(2H, s, CH.sub.2),                                                         3.60(2H, t, CH.sub.2),                                                         2.26(3H, s, CH.sub.3 ),                                                        1.64(2H, m, CH.sub.2),                                                         1.34(6H, m, 3CH.sub.2),                                                        0.91(3H, t, CH.sub.3)                               III  Me       Benzyl                                                                               170-172° C.                                         III  Me       Cyclohexyl                                                                           103-106° C.                                         III  H        3-Cl-ph                                                                              112-115° C.                                         III  H        3-Me-ph                                                                              153-156° C.                                         III  H        2-Me-ph                                                                              132-134° C.                                         III  H        2-Cl-ph                                                                              139-140° C.                                         III  H        4-Me-ph                                                                              165-170° C.                                      100.                                                                              III  H        n-Bu  66-70° C.                                        101.                                                                              III  H        Et    Oil    7.42(1H, s)                                                                    4.64(2H, s, CH.sub.2),                                                         3.70(2H, q, CH.sub.2),                                                         1.34(3H, t, CH.sub.3)                            102.                                                                              III  H        4-F-ph                                                                               124-127° C.                                      103.                                                                              III  H        4-MeO-ph                                                                             117-120° C.                                      104.                                                                              III  H        4-NO.sub.2 -ph                                                                       165-166° C.                                      105.                                                                              III  H        4-Br-ph                                                                              175-177° C.                                      106.                                                                              III  H        2,4-Cl.sub.2 -ph                                                                     148-151° C.                                      107.                                                                              III  H        3,4-Cl.sub.2 -ph                                                                     160-161° C.                                      108.                                                                              III  H        3,5-Cl.sub.2 -ph                                                                     101-105° C.                                      109.                                                                              III  H        3-F-ph                                                                               172-175° C.                                      110.                                                                              III  H        3-Br-ph                                                                              105-110° C.                                      111.                                                                              III  H        2-F-ph                                                                               115-120° C.                                      112.                                                                              III  H        Cyclohexyl                                                                           118-122° C.                                      113.                                                                              III  H        Benzyl                                                                               119-124° C.                                      114.                                                                              III  H        n-Hexyl                                                                              Oil    7.45(1H, s, olefinic H),                                                       4.74(2H, s, CH.sub.2),                                                         3.64(2H, t, CH.sub.2),                                                         1.72(2H, m, CH.sub.2),                                                         1.35(6H, m, 3CH.sub.2).                                                        0.90(3H, t, CH.sub.3)                            115.                                                                              III  H        2,6-Cl.sub.2 -ph                                                                     115-120° C.                                      116.                                                                              III  H        3,5-Me.sub.2 -ph                                                                     80-85° C.                                        117.                                                                              III  H        2,4-Me.sub.2 -ph                                                                     119-124° C.                                      118.                                                                              III  H        4-Et-ph                                                                              129-132° C.                                      119.                                                                              III  H        3-Et-ph                                                                              82-87° C.                                        120.                                                                              III  H        n-Octyl                                                                              Oil    7.44(1H, s, olefinic H),                                                       4.72(2H, s, CH.sub.2),                                                         3.62(2H, t, CH.sub.2),                                                         1.72(2H, m, CH.sub.2),                                                         1.30(10H, m, 5CH.sub.2),                                                       0.90(3H, t, CH.sub.3)                            121.                                                                              III  H        n-Dodecyl                                                                            50-52° C.                                        __________________________________________________________________________

EXAMPLE 1 Preparation of 2-(4-Chlorophenyl)-4-3-Iodopropargyl) -1,3,4-Oxadiazolin-5-one (Compound #1)

To the suspension of 4-chlorobenzhydrazide (8.53 g, 0.05 mole) in methylene chloride (100 ml), equipped with a magnetic stirring bar, a nitrogen inlet, a dropping funnel, and an outlet connected to diluted base solution for trapping the HCl gas, was dropwise added trichloromethyl chloroformate (5.94 g, 0.03 mole). After addition, the reaction mixture was heated to reflux for 2 hr. The reaction was cooled down to room temperature and poured into a mixture of water (500 ml) and hexane (200 ml) and stirred for 10 to 20 min. The resultant precipitate was collected by suction-filtration and was washed with hexane to give a solid product. The product was dried in air at room temperature overnight yielding 5.5 g (60% yield) of 2-(4-chlorophenyl)-1,3,4-oxadiazolin-5-one as a solid, m.p.=225°-227° C. NMR and IR spectra showed the desired structure. Without further purification, this product was subjected to the next step.

To the suspension of 2-(4-chlorophenyl)-1,3,4-oxadiazolin-5-one (2 g, 0.01 mole) in acetone (50 ml) was added potassium carbonate (2 g, 0.015 mole), followed by propargyl bromide (1.6 g of 80% in toluene, 0.0106 mole) with magnetic stirring under nitrogen for 3 hr. The reaction mixture was cooled down to room temperature. The suspension was filtered by suction-filtration and the solid was washed with acetone. The filtrate was concentrated to about 10 ml and was poured into water (200 ml). The resultant precipitate was collected by suction-filtration and washed with water and hexane affording 0.85 g (36% yield), after drying in air, of 2-(4-chlorophenyl)-4-propargyl-1,3,4-oxadiazolin-5-one as a solid. m.p.=125°-127° C. NMR and IR spectra showed the desired structure. Without further purification, this compound was subjected to the next step.

To the suspension of 2-(4-chlorophenyl)-4-propargyl-1,3,4-oxadiazolin-5-one (0.6 g, 0.00256 mole) in acetone (20 ml) with magnetic stirring at room temperature was added N-iodosuccinimide (0.6 g, 0.00266 mole), followed by silver nitrate (0.040 g, 0.00024 mole). The reaction mixture was stirred at room temperature for one hour. The suspension was filtered gravitationally and the solid was rinsed with acetone. The filtrate was poured into water (300 ml). The resultant precipitate was collected by suction-filtration and air-dried to give 0.8 g (92% yield), of 2-(4-chlorophenyl)-4-(3-iodopropargyl)-1,3,4-oxadiazolin-5-one as a solid. m.p.=151°-152° C. The proton NKM spectrum was consistent with the desired structure.

EXAMPLE 2 1-(3-Iodopropargyl)-3-(4-chlorophenyl)-4-ethyl-1,2,4-triazolin-5-one (Compound #20)

To a suspension of 4-chlorobenzhydrazide (98.5 g, 0.05 mole) in tetrahydrofuran (100 ml) at room temperature ethylisocyanate (4.2 g, 0.05 mole) was added slowly with magnetic stirring. The reaction was slightly exothermic and the reaction mixture turned to a thick paste. Stirring was continued an additional 30 min after which the solid was collected by suction-filtration and washed with a small amount of tetrahydrofuran and dried to provide 11.6 g (96.6% yield), of 1-(4chlorobenzoyl)-4-ethyl semicarbazide as a white solid., m.p.=242°-243° C. The above semicarbazide (10 g, 0.0414 mole) was dissolved in 1N sodium hydroxide solution (100 ml) and was refluxed with stirring for 16 hr. The solution was cooled down to about 10° C. by an ice bath and was neutralized by conc. hydrogen chloride until pH 2. The resultant white solid was collected by suction-filtration and washed with water to give 8.65 g (93.5% yield) of 3-(4-chlorophenyl)-4-ethyl-1,2,4-triazolin-5-one as a white solid. m.p.=190°-197° C. A proton NMR spectrum was consistent with the desired structure.

To the solution of 3-(4-chlorophenyl)-4-ethyl-1,2,4-triazolin-5-one (2.23 g, 0.01 mole) in dry acetone (40 ml) was added, at room temperature, potassium carbonate (1.67 g, 0.012 mole) followed by propargyl bromide (1.8 g of 80% in toluene, 0.012 mole). The reaction mixture was then refluxed with stirring for 6 hr. The mixture was cooled down to room temperature and solvent was evaporated to give a residue. The product was purified by crystallization from hexane/ether, affording 1.8 g (69.2% yield) of 1-propargyl-3-(4-chlorophenyl)-4-ethyl-1,2,4-triazolin-5-one as a white solid. m.p.=115°-119° C. A proton NMR spectrum was consistent with the desired structure.

To the solution of 1-propargyl-3-(4-chlorophenyl)-4-ethyl-1,2,4-triazolin-5-one (1.0 g , 3.82 mmole) in dry acetone (20 ml) was added N-iodosuccinimide (0.95 g, 4.2 mmole), followed by silver nitrate (50 mg, 0.29 mmole) with magnetic stirring at room temperature. The reaction mixture was stirred for 1 hr. The resultant suspension was filtered and the filtrate was poured into water (250 ml). A yellowish white solid slowly precipitated out and was collected by suction-filtration and washed with water to give 1.12 g (76% yield) of 1-(3-iodopropargyl)-3-(4-chloro-phenyl)-4-ethyl-1,2,4-triazolin-5-one as a light yellow solid. m.p.=115°-120° C. A proton NMR spectrum was consistent with the desired compound.

EXAMPLE 3 Preparation of 2-phenyl-4-iodopropargyl-1,3,4-thiadiazolin-5-one (Compound 59) A. Preparation of Thiobenzhydrazide

A cold solution of S-(thiobenzoly)thioglycolic acid (12.25 g, 57.6 mmole) in 1N NAOH (60 ml, 60 mmole NAOH) was slowly added to a solution of hydrazine monohydrate (6 g, 123.8 mmole) in 5 ml of water at about 5° C. with magnetic stirring. After the addition, the resultant yellow suspension was stirred at room temperature for one hour. The mixture was cooled down to 5° C. and was acidified with conc. HCl until pH=6. The yellow solid was collected by suction-filtration and was washed with water to afford 3.70 g, after drying in air. m.p.=66°-68° C.

B. Preparation of 2-phenyl-1,3,4-thiadiazolin-5-one

To a solution of thiobenzhydrazide (3.7 g, 24.34 mmole) in methylene chloride (50 ml), equipped with magnetic stirrer, nitrogen inlet, and an outlet connected to a trap containing a diluted NAOH solution, was added trichloromethyl chloroformate (4 g, 20.2 mmole). The reaction mixture was stirred at room temperature for one hour. The mixture was diluted with methylene chloride (100 ml) and washed with water (3×50 ml) and brine. The organic layer was dried over MgSO₄. After the drying agent was filtered off the filtrate was concentrated to a residue. The residue was triturated with hexane and the solid product was collected by suction-filtration to give 3.7 g as a powder. m.p.=140°-143° C.

C. Preparation of 2-phenyl-4-propargyl-1,3,4-thiadiazolin-5-one

To the solution of 2-phenyl-1,3,4-thiadiazolin-5-one (3 g, 16.85 mmole) in dry acetone (30 ml) under nitrogen with magnetic stirring was added potassium carbonate (3 g, 22 mmole), followed by propargyl bromide (3 g, 80% in toluene, 20 mmole) at room temperature. The mixture was refluxed for one hour. The reaction mixture was cooled down to room temperature and the solid was filtered off by suction-filtration. The filtrate was diluted with ether (200 ml) and washed with water (2×50 ml) and brine. The organic layer was dried over sodium sulfate. After the drying agent was filtered off the filtrate was concentrated to about 5 ml. Hexane was added to precipitate out the product. The product was collected by suction-filtration and washed with a little hexane to afford 2 g of 2-phenyl-4-propargyl-1,3,4-thiadiazolin-5-one as a powder. m.p.=73°-75° C.

D. Preparation of 2-phenyl4-iodopropargyl-1,3,4-thiadiazolin-5-one

To the solution of 2-phenyl-4-propargyl-1,3,4-thiadiazolin-5-one (1.6 g, 7.4 mmole) in dry acetone (25 ml) under nitrogen with magnetic stirring was added catalytic amount of silver nitrate 0.1 g, 0.58 mmole), followed by N-iodosuccinimide (1.85 g, 8.15 mmole). The reaction mixture was stirred at room temperature for 20 hours. The solid was filtered off by suction-filtration through a Celite filter. The filtrate was diluted with water (200 ml) and extracted with ethyl acetate (2×100 ml). The organic layer was washed with water (2×50 ml), brine, and dried over sodium sulfate. The drying agent was filtered off and the filtrate was concentrated to give a residue. The residue was triturated with hexane and the product was collected by suction-filtration to give 1.75 g as a semicrystalline compound. m.p.=117°-119° C. Proton NMR spectrum showed the desired compound.

EXAMPLE 4 Biocidal Evaluations of Compounds

A minimum inhibitory concentration (MIC) value is obtained using a broth, two-fold serial dilution test performed as follows: A stock solution or dispersion of the test compound, typically at a concentration of 1%, is made in a 5:3:2 solvent solution of acetone, methanol, and water. A volume of the stock solution is dispensed into culture media to give an initial starting test concentration of 500 PPM. 250 ppm, or 12 5 ppm compound.

When the test is ready to be done, each vessel in the dilution series, except the first vessel, contains an equal volume of compound free broth. The first vessel contains twice the volume of broth with the starting concentration of test compound. One half of the broth from the first vessel is transferred to the second vessel. After being mixed, one half the resulting volume is removed from the second vessel and transferred to the third vessel. The entire cycle is repeated sufficiently to give a series of concentrations amounting to 500, 250, 125, 63, 31, 16, 8, and 4 ppm or 250, 125, 63, 32, 16, 8, 4, 2, 1, 0.5, 0.25, and 0. 12 (or 100, 50, 25, 12.5, 6.2, 3.1, 1.6, and 0.8), respectively.

Each vessel is then inoculated with a cell suspension of the appropriate test organism. Bacteria are grown in broth and fungi on agar slants and algae is grown in cooling tower media for a time and at a temperature appropriate to the species being tested. At the end of the growth period, the broth is vortexed to disperse the cells. In the case of fungi, the spores are harvested by pipetting water onto the slant and dislodging the spores with a sterile loop. The cell/spore suspension is standardized by controlling incubation time, temperature, and the volume of the diluent. The suspension is then used to inoculate the vessels containing the broth compound. The vessels are then incubated at the appropriate temperature. After the incubation, the vessels are examined for growth/no growth. The minimum inhibitory concentration (NEC) is defined as the lowest concentration of compound that results in complete inhibition of growth of the test organism.

The organisms tested to demonstrate biocidal activity include:

BACTERIA:

Pseudomonas fluorescens (Ps.fl), gram negative

Pseudomonas aerugenosa (Ps.ae), gram negative

Escherichia coli (E.c), gram negative

Staphylococcus aureus (S.a), gram positive

FUNGI:

Aspergillus niger (A.n)

Aureobasidium pullulans (A.p)

ALGAE:

Chlorella pyroidenosa (see Table 5)

                  TABLE 2                                                          ______________________________________                                         Biocidal Evaluation                                                            The Result of Minimum Inhibitory Concentration (MIC) Tests                            MIC (ppm)                                                               Compound #                                                                              Psfl    Psae    Ecol  Saur  Anig  Apul                                ______________________________________                                          1.      >100    >100    >100  >100  <0.8  <0.8                                 2.      >100    >100    >100  >100  <0.8  <0.8                                 3.      100     >100    >100  >100  >100  <0.8                                 4.      100     >100    >100  >100  2     <0.8                                 5.      >100    >100    >100  50    <0.8  <0.8                                 6.      >100    >100    >100  13    <0.8  <0.8                                 7.      50      50      25    13    <0.8  <0.8                                 8.      50      100     25    25    <0.8  <0.8                                 9.      >100    >100    >100  >100  <0.8  <0.8                                10.      13      13      13    6     <0.8  <0.8                                11.      50      100     >100  50    <0.8  <0.8                                12.      >100    >100    >100  >100  <0.8  <0.8                                13.      >500    >500    >500  >500  250   8                                   14.      >500    >500    >500  >500  500   32                                  15.      >500    125     >500  >500  63    <4                                  16.      >500    125     125   >500  125   <4                                  17.      >500    >500    >500  >500  8     <4                                  18.      >500    >500    >500  >500  <4    <4                                  19.      100     25      50    25    <0.8  <0.8                                20.      100     25      50    13    <0.8  <0.8                                21.      >100    100     50    25    <0.8  1.6                                 22.      >100    >100    >100  50    6.3   3                                   23.      >100    >100    >100  50    13    3                                   24.      >100    >100    >100  100   6     3                                   25.      >100    >100    50    25    <0.8  <0.8                                26.      >100    >100    50    1.6   <0.8  1.6                                 27.      50      100     >100  100   100   2                                   28.      >100    >100    >100  50    25    <0.8                                29.      100     >100    >100  25    6.3   <0.8                                30.      >100    >100    50    13    <0.8  <0.8                                31.      >100    50      50    25    1.6   <0.8                                32.      100     50      50    25    <0.8  <0.8                                33.      >100    50      25    25    13    25                                  34.      >100    >100    >100  50    13    13                                  35.      >100    >100    >100  50    25    6                                   36.      100     >100    >100  >100  <0.8  3                                   37.      100     100     >100  100   <0.8  3                                   38.      >100    100     >100  >100  2     6.3                                 39.      >100    >100    >100  >100  2     6.3                                 40.      >100    >100    >100  >100  50    25                                  41.      >100    >100    >100  >100  6.3   6.3                                 42.      >100    >100    >100  50    13    6                                   43.      100     50      >100  >100  6     <0.8                                44.      >100    >100    >100  25    13    6                                   45.      >100    >100    >100  >100  >100  >100                                46.      >100    >100    >100  >100  >100  >100                                47.      63      63      63    125   16    8                                   48.      16      250     250   32    16    <4                                  49.      32      32      63    125   8     <4                                  50.      >500    >500    >500  >500  63    <4                                  51.      63      250     63    63    32    <4                                  52.      63      250     32    125   32    <4                                  53.      16      63      32    32    <4    <4                                  54.      16      125     32    32    8     <4                                  55.      16      125     32    32    8     <4                                  56.      16      125     16    32    <4    <4                                  57.      32      125     32    63    8     <4                                  58.      16      125     63    125   32    16                                  59       250     >250    >250  250   <4    4                                   61       250     125     32    32    <4    <4                                  62       250     250     250   250   <4    <4                                  63       250     250     250   500   <4    <4                                  64       250     250     250   500   <4    <4                                  65       250     250     250   500   <4    <4                                  66       8       63      32    250   <4    <4                                  67       8       32      16    <4    <4    <4                                  68       63      125     >500  125   <4    16                                  69       >250    >250    >250  >250  4     >250                                70       63      63      >500  125   <4    --                                  71       125     63      >500  250   8     --                                  72       >500    >500    >500  >500  >500  >500                                73       >250    >250    >250  >250  >250  >250                                74       >250    >250    >250  >250  250   >250                                75       >250    >250    >250  >250  >250  8                                   76       >250    >250    >250  >250  2     8                                   77       --      63      >250  8     <0.12 16                                  78                                                                             79                                                                             80       32      250     250   32    4     --                                  81       32      250     250   63    16    --                                  82       32      125     250   32    2     --                                  83       125     250     >250  250   32    --                                  84       63      250     250   63    16    8                                   85       125     >250    >250  63    16    8                                   86       >250    >250    >250  >250  32    32                                  87       --      >250    >250  >250  8     --                                  88       --      >250    >250  >250  63    --                                  89       --      >250    >250  250   16    8                                   90       --      >250    >250  250   32    16                                  91       --      >250    >250  >250  >250  >250                                92       --      250     >250  125   4     4                                   93       --      125     >250  63    8     8                                   94       --      >250    >250  250   16    8                                   95       32      250     >250  63    <0.12 --                                  96       125     >250    >250  >250  <0.12 --                                  97       63      >250    >250  125   4     4                                   98       63      >250    >250  125   4     4                                   99       >250    >250    >250  >250  8     4                                   100      63      125     125   125   1     2                                   101      63      250     >250  63    16    8                                   102      63      >250    250   63    0.25  2                                   103      125     >250    >250  63    1     4                                   104      63      125     125   63    <0.12 <0.12                               105      125     250     >250  >250  <0.12 <0.12                               106      125     >250    >250  >250  >250  >250                                107      --      125     >250  250   2     16                                  108      250     >250    >250  250   2     4                                   109      >250    >250    >250  >250  32    16                                  110      --      >250    >250  125   2     1                                   111      --      >250    >250  >250  2     1                                   112      --      >250    >250  >250  2     2                                   113      --      >250    >250  >250  0.25  0.25                                114      --      >250    >250  >250  --    --                                  115      --      250     >250  250   32    16                                  116      --      >250    >250  250   16    8                                   117      --      >250    >250  >250  32    8                                   118      --      63      250   250   16    8                                   119      --      125     >250  250   32    8                                   120      --      63      >250  4     <0.12 <0.12                               121      --      >250    >250  >250  >250  >250                                ______________________________________                                    

EXAMPLE 5 In-Vitro Plant Fungicide Tests of Compounds

The organisms employed in the test are:

PYU Pythium ultimum (Oomycete)

PHY Phytophthora capsici (Oomycete)

PIR Piricularia oryzae (Ascomycete)

FM Cochliobolus sativus (Ascomycete)

BOC Botrytis cinerea (Ascomycete)

FUS Fusarium roseum (Ascomycete)

SEP Septoria nodorum (Ascomycete)

RHI Rhizoctonia solani (Basidiomycete)

XAN Xanthomonas campestris (bacterium)

Methods

1. Culture maintenance: Transfers in steps 1 and 2 are done in a laminar flow hood. All 8 fungi and the bacterium used in this test are transferred and maintained on potato dextrose agar plates each week (2 plates/organism). Organisms are used when they are the following ages: a. 1 week old: PYU, PHY, RHI; b. 2 weeks old: XAN, PIR, BOC, HEL, FUS, SEP, COL, MON, CER, UST, ALT; c. 3 weeks old: PSH, VEN. Pythium ultimum and Phytophthora capsici are transferred to asparagine-sucrose broth shake cultures (ASB). Rhizoctonia solani, Fusarium roseum, and Zanthomonas campestris are mainted in yeast extract-dextrose broth (YDB) on a shaker. Culture flasks are inoculated with 6 mycelial plugs each (except for Pythium which is inoculated with only 3 plugs) taken from PDA plates. All liquid shaker cultures are used after 2 days growth.

2. Inoculum preparation. Conidia and mycelium from PIR, BOC, HEL, SEP, COL, MON, CER, PSH, UST and ALT are lightly scraped off into YDB so that mostly conidia are used as inoculum. The conidial suspension is strained through a double layer of cheesecloth to remove mycelial clumps. One plate produces enough conidia or mycelium to inoculate 100 n-d of YDB. XAN broth culture is poured (1 ml culture/100 ml broth) into YDB. PYU, PHY, RFU and FUS cultures are ground up (2-3 5 second bursts in a blender) and an but Pythium and Phytophthora are filtered through a double layer of sterile cheesecloth to remove large mycelial clumps. Ten ml of the culture solutions of R. solani and F. roseum are added to 90 ml of YSB and 10 ml of the P. capsici is added to 90 ml ASB. Two ml of the culture solution of P. ultimum is added to 98 ml of ASB. Care must be made not to overinoculate (e.g. solutions should appear fairly dear to the eye, yet when held up to light a faint cloudiness should be visible) or standards will not behave properly. The inoculum mixtures are placed in microtiter plates using a 12-tipped pipet. 175 μl (single dose) or 100 μl (dose-response test) of inoculum broth is placed in each well of the microtiter plates. The plates with inoculated media are placed in the refrigerator overnight. There are two replications per treatment.

3. Addition of compounds. This operation is carried out in a chemistry hood. Six microtiter plates have 245 microtiters of sterile water added to their wells ahead of time. 10 mg a.i. of the compounds are placed in 1 ml 1:1 acetone:methanol. 5 microliters of this solution is pipetted into the microtiter plates containing the sterile water according to the grid. There are 45 compounds and 3 scattered control treatments per plate. There are 2 replicates per treatment. 25 microtiters of solution is transferred to the inoculated plates with a 96 well replicator. The replicator is flame sterilized with alcohol, rinsed with sterile water, and blotted on sterile paper towells between each transfer.

                                      TABLE 3                                      __________________________________________________________________________     The Results of In-Vitro Plant Fungicide Tests                                  Dose      % Control                                                            Compound                                                                             (PPM)                                                                              PYU XAN PIR PHY                                                                               BOC HEL                                                                               RHI FUS                                                                               SEP                                     __________________________________________________________________________       1.  25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                       2.  25   95 0    75  95                                                                                0   75                                                                               100 100                                                                                95                                       3.  25  100 0    75  75                                                                                0   90                                                                                95 100                                                                                95                                       4.  25  100 0    95  95                                                                                0  100                                                                                90 100                                                                               100                                       5.  25  100 0   100 100                                                                                50  95                                                                               100 100                                                                               100                                       6.  25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                       7.  25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                       8.  25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                       9.  25   0  0    0   0  0   75                                                                                90 100                                                                                0                                       10.  25   50 0    0  100                                                                                0   90                                                                                0  100                                                                               100                                      11.  25  100 0   100  95                                                                                90  95                                                                               100 100                                                                               100                                      12.  25   95 0    95  90                                                                                50 100                                                                                90 100                                                                               100                                      13.  25  100 0   100 100                                                                                0  100                                                                               100 100                                                                               100                                      14.  25  100 0   100 100                                                                                0  100                                                                               100 100                                                                               100                                      15.  25  100 0   100 100                                                                                0  100                                                                               100 100                                                                               100                                      16.  25  100 0   100 100                                                                                0  100                                                                               100 100                                                                               100                                      17.  25   95 0   100 100                                                                                0  100                                                                                95 100                                                                               100                                      18.  25  --  0   100 100                                                                                75 100                                                                               100 100                                                                               100                                      19.  25  100 0   100 100                                                                                0   95                                                                               100 100                                                                               100                                      20.  25  100 0   100 100                                                                                0   95                                                                               100 100                                                                               100                                      21.  25  100 0   100 100                                                                                0  100                                                                               100 100                                                                               100                                      22.  25  100 0   100 100                                                                                0  100                                                                               100 100                                                                               100                                      23.  25  100 0   100 100                                                                                0  100                                                                               100 100                                                                               100                                      24.  25  100 0   100 100                                                                                 95                                                                               100                                                                               100 100                                                                               100                                      25.  25  100 0   100 100                                                                                0  100                                                                                75 100                                                                               100                                      26.  25  100 0   100 100                                                                                75 100                                                                               100 100                                                                               100                                      27.  25  100 0    95 100                                                                                0   75                                                                                95  90                                                                                50                                      28.  25   95 0   100 100                                                                                0   95                                                                               100  95                                                                               100                                      29.  25  100 0   100 100                                                                                0  100                                                                               100  95                                                                                75                                      30.  25  100 0   100 100                                                                                0  100                                                                               100 100                                                                               100                                      31.  25  100 0   100 100                                                                                0  100                                                                               100 100                                                                               100                                      32.  25  100 0   100 100                                                                                0  100                                                                               100 100                                                                               100                                      33.  25  100 0   100 100                                                                                0  100                                                                               100 100                                                                               100                                      34.  25   50 0   100  50                                                                                0   0  50  0  75                                      35.  25   0  0    0   0  0   0  0   0  0                                       36.  25   50 0   100 100                                                                                0  100                                                                               100  90                                                                               100                                      37.  25  --  --  --  -- --  -- --  -- --                                       38.  25   90 0   100  95                                                                                0  100                                                                               100 100                                                                               --                                      39    25  100 0   100 100                                                                                0  100                                                                               100 100                                                                               100                                     40    25   50 0   100  50                                                                                0   0  0   50                                                                                75                                     41    25   0  0    0   0  0   0  0   0                                         42    25   50 0   100 100                                                                                0  100                                                                               100  90                                                                               100                                     43    25   90 0   100  95                                                                                0  100                                                                               100 100                                                                               --                                      44    25   90 0   100  95                                                                                0  100                                                                               100 100                                                                               --                                      45    25   0  0    90  0  0   0  0   50                                                                                0                                      46    25   0  0   100  0  0   50                                                                                50 100                                                                                0                                      47    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     48    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     49    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     50    25  100 0    95 100                                                                               100  95                                                                                95  95                                                                                95                                     51    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     52    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     53    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     54    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     55    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     56    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     57    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     58    25  100 0   100 100                                                                                90 100                                                                               100 100                                                                               100                                     59    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     60    25   0  0   100  0  0   50                                                                                0   0  0                                      61    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     62    25   0  0    0   0  0   0  0   0  0                                      63    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     64    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     65    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     66    25  100 0    95 100                                                                               100 100                                                                               100 100                                                                               10                                      67    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     68    25  100 0   100 100                                                                                90 100                                                                               100 100                                                                               100                                     69    25  100 0   100  95                                                                                50  95                                                                                50  0  95                                     70    25  100 0   100 100                                                                                75 100                                                                               100 100                                                                               100                                     71    25  100 0   100 100                                                                                90 100                                                                               100 100                                                                               100                                     72    25  100 0   100 100                                                                                0   50                                                                                75  0  95                                     73    25   0  0    0   50                                                                                0   50                                                                                0   0  0                                      74    25  100 0   100 100                                                                                0   75                                                                               100  0  0                                      75    25   90 0    75  90                                                                                0   0 100  0  0                                      76    12   0  0   100 100                                                                                0   0  50  0  50                                     77    --  --  --  --  -- --  -- --  -- --                                      78    25  100 0   100 100                                                                                0   75                                                                               100 100                                                                               100                                     79    25  100 0   100 100                                                                                75 100                                                                               100 100                                                                                50                                     80    25  100 0   100 100                                                                                50 100                                                                               100 100                                                                                50                                     81    25  100 0   100 100                                                                                0  100                                                                               100  0  0                                      82    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     83    25  100 0   100 100                                                                                0   75                                                                               100 100                                                                                50                                     84    25  100 0   100 100                                                                                50 100                                                                               100 100                                                                               100                                     85    25  100 0   100 100                                                                                50 100                                                                               100 100                                                                               100                                     86    25  100 0   100 100                                                                               100  75                                                                               100 100                                                                               100                                     87    --  --  --  --  -- --  -- --  -- --                                      88    --  --  --  --  -- --  -- --  -- --                                      95    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     96    25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     97    --  --  --  --  -- --  -- --  -- --                                      98    25  --  --  --  100                                                                               --  -- 100 100                                                                               --                                      99    25  --  --  --  100                                                                               --  -- 100 100                                                                               --                                      100   25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     101   25  100 0   100 100                                                                                90 100                                                                               100 100                                                                               100                                     102   25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     103   25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     104   25  100 0   --  100                                                                                95  0  90  90                                                                               100                                     105   25  100 0   --  100                                                                               100  75                                                                               100 100                                                                               100                                     106   25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     107   25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     108   25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     109   25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     110   25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     111   25  100 50  100 100                                                                               100 100                                                                               100 100                                                                               100                                     112   25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     113   25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     114   25  100 0   100 100                                                                               100 100                                                                               100 100                                                                               100                                     __________________________________________________________________________

EXAMPLE 6 Agricultural Fungicide Evaluations of Compounds

The compounds of this invention were tested for fungicidal activity in vivo against cucumber downy mildew (CDM), rice blast (RB), rice sheath blight (RSB), tomato late blight (TLB), wheat powdery mildew (WPM), wheat stem rust (WSR) and wheat leaf rust (WLR) and the results are shown in Table 4. In tests on cereals (except for rice plants used for testing rice blast), the plants were trimmed about 24 hours prior to the application of the fungicide compound to provide a uniform plant height and to facilitate uniform application of the compound and inoculation with the fungus. The compounds were dissolved in a 2:1:1 mixture of water, acetone, and methanol, sprayed onto the plants, allowed to dry (four to six hours), and then the plants were inoculated with the fungus. Each test utilized control plants which were sprayed with the water, acetone, and methanol mixture and inoculated with the fungus. The remainder of the technique of each of the tests is given below and the results are reported as percent disease control (percentages of plants treated with the compounds of the present invention lacking disease signs or symptoms compared to the untreated control plants).

Cucumber Downy Mildew (CDM)

Pseudoperonospora cubensis was maintained on leaves of live Marketer cucumber plants in a constant temperature room at 65° F. to 75° F. in humid air with moderate light intensity for 7 to 8 days. A water suspension of the spores from infested leaves was obtained and the spore concentration was adjusted to about 100,000 per ml of water.

Marketer cucumber seedlings were inoculated by spraying the underside of the leaves with a DeVilbiss atomizer until small droplets were observed on the leaves. The inoculated plants were incubated in a mist chamber for 24 hours at about 70° F. and then subsequently incubated for 6 to 7 days in a controlled temperature room under mist at 65° F. to 75° F. Seven days after inoculation, the percent disease control was determined.

Rice Blast (RB)

Nato rice plants were inoculated with Piricularia oryzae (about 20,000 conidia per ml) by spraying the leaves and stems with an airbrush until a uniform film of inoculum was observed on the leaves. The inoculated plants were incubated in a humid environment (75° F. to 85° F.) for about 24 hours, then placed in a greenhouse environment (70° F. to 75° F.). Seven to eight days after inoculation, the percent disease control was determined.

Rice Sheath Blight (RSB)

Pellicularia filamentosa (f. sp. sasiki) was cultured on an autoclaved mixture of crushed rice seeds and potato dextrose broth (100 gms of rice seeds per 30 ml of potato dextrose broth) in a 500 ml Erlenmeyer flask. After 10 days, the culture was blended in a blender to produce a uniform inoculum. Approximately one teaspoon of inoculum was spread among Lebonnet rice seedlings on the soil surface of each pot (3 inch diameter). The inoculated seedlings were incubated for 5 days in a humidity cabinet (85° F. to 90° F.). Percent disease controls were determined immediately after removing the seedlings from the cabinet.

Tomato Late Blight (TLB)

Phytophthora infestans was cultured on four week old Pixie tomato plants in a controlled environment room (65° F. to 70° F. and 100% relative humidity). After storage, the spores were washed from the leaves with water and dispersed by DeVilbiss atomizer over three week old Pixie tomato plants which had been sprayed previously with experimental fungicides. The inoculated plants were placed in a humidity cabinet at 70° F. and constant mist for 24 hours for infection. The plants were then moved to the controlled environment room as above and scored after three more days incubation. Disease control levels were recorded as percent control four days after inoculation and five days after spraying the compounds.

Wheat Powdery Mildew (WPM)

Erysiphe graminis (f. sp. tritici) was cultured on Pennol wheat seedlings in a controlled temperature room at 65° F. to 75° F. Mildew spores were shaken from the culture plants onto Pennol wheat seedlings which had been sprayed previously with the fungicide compound. The inoculated seedlings were kept in a controlled temperature room at 65° F. to 75° F. and subirrigated. The percent disease control was rated 8 to 10 days after the inoculation.

Wheat Stem Rust (WSR)

Puccinis graminis (f. sp. Race 15B-2) was cultured on Wanzer wheat seedlings for a period of 14 days in a greenhouse. A water suspension of the spores from infested plants was obtained and the spore concentration was adjusted to about 200,000 spores per ml of deionized water. Wanzer wheat plants which had been previously treated with the fungicide compounds were inoculated by applying the stem rust spore suspension, until runoff, with a DeVilbiss atomizer at 5 lbs. per square inch air pressure. After inoculation, the plants were placed in a humid environment at approximately 75° F. where they were exposed to 12 hours of continuous darkness followed by a minimum of 3 to 4 hours of light having an intensity of about 500 footcandles. The temperature in the chamber did not exceed 85° F. At the end of the light period, the plants were placed in a greenhouse where they were permitted to grow for a period of two weeks at which time the percent disease control was determined.

Wheat Leaf Rust (WLR)

Puccinis recondita (f. sp. tritici Races PKB and PLD) was cultured on seven day old wheat (cultivar Fielder) over a 14 day period in the greenhouse. Spores were collected from the leaves with a cyclone vacuum or by settling on aluminum foil. The spores were cleaned by sieving through a 250 micron opening screen and stored or used fresh. Storage employed sealed bags in an Ultralow freezer. When stored, spores must be heat shocked for two minutes at 40° F. before use. A spore suspension is prepared from dry uredia by adding 20 mg (9.5 million) per ml of Soltrol oil. The suspension is dispensed into gelatin capsules (0.7 ml capacity) which attach to the oil atomizers. One capsule is used per flat of twenty of the two inch square pots of seven day old Fielder wheat. After waiting for at least 15 minutes for the oil to evaporate from the wheat leaves, the plants are placed in a dark mist chamber (18°-20° C. and 100% relative humidity) for 24 hours. The plants are then put in the greenhouse for the latent period and scored after 10 days for disease levels. Protective and curative tests were inoculated one day after and two days, respectively, before spraying the plants with the test chemicals.

                  TABLE 4                                                          ______________________________________                                         Green House Test Results of Plant diseases Control                             Com-   Rate    % Control                                                       pound  (ppm)   CDM     RB   SNW   TLB  WLR   WPM                               ______________________________________                                           1.   200     90       0   80     0   50     0                                  2.   200     80      75   80     0   90    75                                  3.   200     70       0   80     0   50    85                                  4.   200     90      90   90     0   80    75                                  5.   200      0      75   50    90   80    75                                  6.   200     80      75   90     0   90    75                                  7.   200     50      90   80    50    0     0                                  8.   200      0      50    0     0    0     0                                  9.   200      0       0    0     0   50     0                                 10.   200     50      90   80     0   80    75                                 11.   200     50       0   80     0   50    50                                 12.   200      0       0    0     0    0     0                                 13.   200      0       0    0     0    0     0                                 14.   --      --      --   --    --   --    --                                 15.   200      0       0    0     0   50     0                                 16.   200      0       0    0     0   50     0                                 17.   200      0      50    0     0   80     0                                 18.   200     --      75   50     0   80     0                                 19.   200     75       0    0    80   90     0                                 20.   200     90      75   50    70   80    75                                 21.   200     80       0   50    80   50     0                                 22.   200     50      50   50     0   50     0                                 23.   200     50      75    0    70   50    75                                 24.   200     70       0   50    95   80    85                                 25.   200     90      90   80    95   80     0                                 26.   200      0       0    0    95    0    50                                 27.   200     80       0    0    85   80     0                                 28.   200     70      75    0    80   80     0                                 29.   200     90       0   50    80   80    90                                 30.   200     95       0    0    80   80    75                                 31.   200     50      90   50    85   80    75                                 32.   200      0       0   50    90   80     0                                 33.   200      0       0    0    70   50    85                                 34.   200     90      99   80    80   80    85                                 35.   200     70      --    0     0   50     0                                 36.   200     70      --   50    85   95     0                                 37.   200      0      50    0     0   25    75                                 38.   200     70       0    0     0    0     0                                39     200      0       0   50    90   80     0                                40     200     50       0    0    80   50    90                                41     200      0       0    0    70   50    85                                42     200      0      --    0    85   50     0                                43     200     70      --   --     0   50     0                                44     200     70      --   50    85   95     0                                45     200      0      50    0     0   25    75                                46     200     70       0    0     0    0     0                                47     200      0      --   50    --   80      0                               48     200     50      --   50    --   50    90                                49     200      0      --   80    85   50     0                                50     200      0      --    0     0   50     0                                51     200      0      --    0    90   50     0                                52     200      0      --    0     0   80     0                                53     200      0      --    0     0   80     0                                54     200      0      --   80     0   80    85                                55     200     70      --   50     0   80     0                                56     200      0      --   50     0   80    50                                57     200     70      --   80    85   80    100                               58     200     95      --    0    70   90    90                                59     200     90       0   50     0   50     0                                60     200     85      --    0     0    0     0                                61     200      0      --   --    50    0     0                                62     --      --      --   --    --   --    --                                63     200     90      --   --    50   90     0                                64     --      --      --   --    --   --    --                                65     200     90      --   --    90   90     0                                66     200     75      --   --     0   99     0                                67     200     85      --   --    95   90     0                                68     200     50      --   --    50   99     0                                69     --      --      --   --    --   --    --                                70     200     80      --   --     0    0     0                                71     --      --      --   --    --   --    --                                72     --      --      --   --    --   --    --                                73     200     90      --   --     0   85    85                                74     200      0      --   --    50   75     0                                75     200      0      --   --     0   95     0                                76     200     90      --   --     0   95     0                                77     --      --      --   --    --   --    --                                78     --      --      --   --    --   --    --                                79     200     75      --   --    75   85     0                                80     200     50      --   --    75   75     0                                81     200      0      --   --     0   75     0                                82     200     50      --   --     0    0     0                                83     200     85      --   --    75   95     0                                84     --      --      --   --    --   --    --                                85     --      --      --   --    --   --    --                                86     200     75      --   --    85   75     0                                87     --      --      --   --    --   --    --                                88     200     90      --   --     0    0     0                                89     --      --      --   --    --   --    --                                90     --      --      --   --    --   --    --                                91     --      --      --   --    --   --    --                                92     200     70      --   --    --   95     0                                93     200     95      --   --     0   75     0                                94     200     100     --   --     0   90     0                                95     --      --      --   --    --   --    --                                96     200     90      --   --     0   99     0                                97     --      --      --   --    --   --    --                                98     200     90      --   --    90   95     0                                99     --      --      --   --    --   --    --                                100    --      --      --   --    --   --    --                                101    200      0      --   --     0    0     0                                102    200      0      --   --     0   75     0                                103    200      0      --   --     0   50     0                                104    --      --      --   --    --   --    --                                105    --      --      --   --    --   --    --                                106    --      --      --   --    --   --    --                                107    --      --      --   --    --   --    --                                108    --      --      --   --    --   --    --                                109    --      --      --   --    --   --    --                                110    200     --      --   50    75   80     0                                111    --      --      --   --    --   --    --                                112    --      --      --   --    --   --    --                                113    --      --      --   --    --   --    --                                114    200     --      --   50    75   90     0                                115    --      --      --   --    --   --    --                                116    200     100     --   --    75   90     0                                ______________________________________                                    

                  TABLE 5                                                          ______________________________________                                         Antialgal Test Results Against Green Alga                                                           MIC (ppm)                                                 Compound #           Chlorella                                                 ______________________________________                                          85                  0.25                                                       87                  4                                                          88                  <0.12                                                      89                  <0.12                                                      90                  <0.12                                                     107                  <0.12                                                     108                  8                                                         109                  8                                                         110                  4                                                         111                  >250                                                      112                  0.25                                                      113                  8                                                         114                  8                                                         120                  125                                                       121                  <0.12                                                     ______________________________________                                     

What is claimed is:
 1. A compound of the formula ##STR10## wherein A is selected from the group consisting of hydrogen, (C₁ -C₁₈) straight or branched alkyl; (C₃ to C₈) cycloalkyl; (C₃ to C₆) alkenyl; (C₃ to C₅) alkynyl; (C₇ to C₁₂) aralkyl; (C₆ to C₁₂) aryl; (C₆ to C₁₂) aryl substituted with 1 to 3 substituents selected from the group consisting of halogen, (C₁ to C₄) alkyl (C₁ to C₄) alkoxy, nitro, cyano, carboxyl (C₁ to C₄) alkoxycarbonyl, (C₁ to C₄) alkyl thio, -S(O)nR² where n is 1 or 2 and R² is (C₁ -C₄) alkyl; and a halo-substituted, nitro-substituted, or un-substituted moiety selected from the group consisting of 2-thienyl, 3-thienyl, 2-furyl, 3-furyl, 2-pyridyl, 3-pyridyl, and 4-pyridyl;Y is selected from the group consisting of O, S, and N-R; Z is S; R is selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted phenyl, and substituted or unsubstituted heterocyclic; and X is selected from the group consisting of I and Br.
 2. Compound according to claim 1 wherein A is selected from the group consisting of hydrogen, 4-chlorophenyl, 3-chlorophenyl, 2-methylphenyl, 4-methylphenyl, 3-methylphenyl, 2-thienyl, 2-nitrophenyl, 3-nitrophenyl, 4-trifluoromethylphenyl, 2-methoxyphenyl, 4-methoxyphenyl, 3-methoxyphenyl, 4-bromophenyl, 2-fluorophenyl, 2-chloro-4-nitrophenyl, 2,4-dichlorophenyl, 3,4-dichlorophenyl, 2,4,5-trichlorophenyl methyl, t-butyl, phenyl, 4-nitrophenyl, 3-fluorophenyl, 1-naphthyl, 2-naphthyl, 3-pyridyl, 3-bromophenyl, 3-ethoxyphenyl, n-propyl, 2-chlorophenyl, cyclohexyl, 2-furyl, 3,5-dimethoxyphenyl, 2,5-dimethoxyphenyl, 3,4,5-trimethoxyphenyl, 2,5-dichlorophen and methyl n-butyl.
 3. Compound according to claim 1 wherein X is I.
 4. Compound according to claim 3 wherein Y is O.
 5. Process comprising applying or incorporating a sufficient amount of a compound of claim 1 to control the growth of fungi into or onto a locus subject to attack by fungi.
 6. Process comprising applying or incorporating a sufficient amount of a compound of claim 1 to control the growth of bacteria into or onto a locus subject to attack by bacteria. 